diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 7f699762262..284925c9030 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -3871,6 +3871,7 @@ static bool isTargetShuffle(unsigned Opcode) { case X86ISD::VPERMILPV: case X86ISD::VPERM2X128: case X86ISD::VPERMI: + case X86ISD::VPPERM: case X86ISD::VPERMV: case X86ISD::VPERMV3: case X86ISD::VZEXT_MOVL: @@ -5008,6 +5009,20 @@ static bool getTargetShuffleMask(SDNode *N, MVT VT, bool AllowSentinelZero, case X86ISD::MOVLPS: // Not yet implemented return false; + case X86ISD::VPPERM: { + IsUnary = IsFakeUnary = N->getOperand(0) == N->getOperand(1); + SDValue MaskNode = N->getOperand(2); + SmallVector<uint64_t, 32> RawMask; + if (getTargetShuffleMaskIndices(MaskNode, 8, RawMask)) { + DecodeVPPERMMask(RawMask, Mask); + break; + } + if (auto *C = getTargetShuffleMaskConstant(MaskNode)) { + DecodeVPPERMMask(C, Mask); + break; + } + return false; + } case X86ISD::VPERMV: { IsUnary = true; // Unlike most shuffle nodes, VPERMV's mask operand is operand 0. @@ -29688,6 +29703,7 @@ SDValue X86TargetLowering::PerformDAGCombine(SDNode *N, case X86ISD::MOVDDUP: case X86ISD::MOVSS: case X86ISD::MOVSD: + case X86ISD::VPPERM: case X86ISD::VPERMV3: case X86ISD::VPERMILPI: case X86ISD::VPERMILPV: |
